Recent content by sander2798

That was exactly what I didnt understand. Good explanation, thanks a lot!

Yes, but assume you don't have any mass on the cable. The tension is a constant force, right? Adding the gravity of the counterweight to this should be equal to the centripetal force. So if you'd put a mass on this tether, the total forces pulling the countermass towards the Earth will be bigger...

With "falling down" I actually meant "getting closer to the earth", so I still don't understand it, but thanks for your response. :P

Hello everyone, I am trying to find out how space elevators work, but there is one think I can't figure out. Normally, the forces on the countermass and it's tether will be as following, assuming you neglect the gravity on the tether. But now, I put the lift somewhere on the cable (below...

Thanks, now have the correct answer! (I hope :P)

Hello everyone, the problem I have to solve is as following. You're in space and you're moving with a constant speed. Now, you want to accelerate. For this you will be using Newton's third law. Xenon 1+ iones will be shot from the back of the spacecraft with high speeds, the avarage speed...

Thanks a lot, appearantly there was a mistake in my book, thanks.

Hey everyone, I have a little physics space problem I can't manage to solve, so I hoped someone would be able to help me here. This is the problem: We have an object with mass m and speed v1 approaching an other object with mass M and speed U1. The two objects are moving in opposite direction...